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105225 Cresol red

indicator Reag. Ph Eur

Cresol red MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: o-Cresolsulfonphthalein

CAS #: 1733-12-6 EC Number: 217-064-2 Molar Mass: 382.43 g/mol Hill Formula: C₂₁H₁₈O₅S Grade: Reag. Ph Eur
105225
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Overview

Key Spec Table

CAS #EC NumberHill FormulaMolar MassGrade Value
1733-12-6217-064-2C₂₁H₁₈O₅S382.43 g/molReag. Ph Eur

Products

Catalogue NumberPackaging Qty/Pack
1052250005 Glass bottle 5 g
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1052250025 Glass bottle 25 g
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Description
Catalogue Number105225
Synonymso-Cresolsulfonphthalein
Product Information
CAS number1733-12-6
EC number217-064-2
GradeReag. Ph Eur
Hill FormulaC₂₁H₁₈O₅S
Molar Mass382.43 g/mol
HS Code2934 99 90
Structure formula ImageStructure formula Image
Quality LevelMQ200
Physicochemical Information
Density0.998 g/cm3
Melting Point290 °C decomposes
Bulk density600 - 620 kg/m3
Safety Information according to GHS
Storage class10 - 13 Other liquids and solids
WGKWGK 3 highly hazardous to water
Disposal3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Storage and Shipping Information
StorageStore at +2°C to +30°C.
Specifications
Appearance of solution(0,5 g/l; ethanol)passes test
Identity (UV/VIS-Spectrum)passes test
1st transition rangepH 0.5 - pH 2.5 pink - brownish yellow
2nd transition rangepH 6.5 - pH 8.5 yellow - purple
Absorption maximum λ 1 max. (buffer pH 0.5)517 - 520 nm
Absorption maximum λ 2 max. (buffer pH 2.5)432 - 436 nm
Absorption maximum λ 3 max. (buffer pH 6.5)432 - 436 nm
Absorption maximum λ 4 max. (buffer pH 8.5)571 - 574 nm
Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.005 g/l; buffer pH 0.5; calc. on dried substances)≥ 1200
Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.005 g/l; buffer pH 2.5; calc. on dried substances)490 - 570
Spec. Absorptivity A 1%/1cm (λ 3 max.; 0.005 g/l; buffer pH 6.5; calc. on dried substances)490 - 610
Spec. Absorptivity A 1%/1cm (λ 4 max.; 0.005 g/l; buffer pH 8.5; calc. on dried substances)1000 - 1190
Loss on drying (110 °C)≤ 5 %
Sensitivity testpasses test
Global Trade Item Number
Catalogue Number GTIN
1052250005 04022536062419
1052250025 04022536062426